Supero X7DWN+, Руководство пользователя

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2-6
X7DWN+ User's Manual
2-3 Installing DIMMs
Note : Check the Supermicro web site for recommended memory modules.
CAUTION
Exercise extreme care when installing or removing DIMM
modules to prevent any possible damage. Also note that the
memory is interleaved to improve performance (see step 1).
DIMM Installation
1. Insert the desired number of DIMMs into the memory slots, starting with DIMM
#1A. The memory scheme is interleaved, so you must install (a) pair(s) of
modules of the same type and same speed at a time, beginning with Bank
1, Bank 2 and so on. For optimal memory performance, please install four
modules at a time with the maximum of 16 modules. (See the Memory Instal-
lation Table Below.)
2. Insert each DIMM module vertically into its slot. Pay attention to the notch along
the bottom of the module to prevent inserting the DIMM module incorrectly.
3. Gently press down on the DIMM module until it snaps into place in the slot.
Repeat for all modules (see step 1 above).
Memory Support
The X7DWN+ supports up to 128 GB fully buffered (FBD) ECC DDR 2 800/667/533
in 16 DIMMs.
Note 1 : Due to OS limitations, some operating systems may not show more than
4 GB of memory.
DIMM Module Population Confi guration
To optimize memory support, follow the table below for memory installation:
Optimized DIMM Population Configurations
Branch 0 Branch 1
Number of
DIMMs Bank 1
(Channel 0) Bank 2
(Channel 1) Bank 3
(Channel 2) Bank 4
(Channel 3)
2 DIMMs 1A --- --- --- 2A --- --- --- --- --- --- --- --- --- --- ---
4 DIMMs 1A --- --- --- 2A --- --- --- 3A --- --- --- 4A --- --- ---
8 DIMMs 1A 1B --- --- 2A 2B --- --- 3A 3B --- --- 4A 4B --- ---
12 DIMMs 1A 1B 1C --- 2A 2B 2C --- 3A 3B 3C --- 4A 4B 4C ---
16 DIMMs 1A 1B 1C 1D 2A 2B 2C 2D 3A 3B 3C 3D 4A 4B 4C 4D
(* Notes: i. DIMM slot# specified: DIMM slot to be populated; “---“: DIMM slot not to
be populated. ii. Both FBD 533 MHz, 667MHz and 800MHz DIMMs are supported;
however, you need to use the memory modules of the same speed and of the same
type on a motherboard.
iii. Interleaved memory is supported when pairs of DIMM
modules are installed. For optimal memory performance, please install pairs of
memory modules in
both Branch 0 and Branch 1 . iv. For memory to work properly,
you need to follow the restrictions listed above. )